Musa, M., Abdullah, A. M., Ismail, M. M., Saari, M. Y. dan Abdurofi, I. (2021) “Labour Efficiency In The Malaysian Oil Palm Plantations”, Journal of Agribusiness Management and Development, 2(1), hlm. 1-10. Tersedia pada: https://jurnal.ugm.ac.id/v3/JAMADEV/article/view/2260 (Diakses: 18Juli2024).